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Nexperia USA Inc. BUK7604-40A,118
- Part No.:
- BUK7604-40A,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
BUK7604-40A,118.pdf
- Description:
- MOSFET N-CH 40V 75A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:4,505
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Product details
Overview
BUK7604-40A from Nexperia is a standard-level N-channel TrenchMOS FET in D2PAK (SOT404) package, rated for 40 V drain-source voltage, 75 A continuous drain current at Tmb = 25 °C, and 8.5 mΩ RDS(on) at Tj = 175 °C. It is AEC-Q101 qualified and designed for automotive 12 V power switching in thermally demanding environments up to 175 °C junction temperature.
For engineers reviewing the BUK7604-40A datasheet, BUK7604-40A pinout, BUK7604-40A application, or BUK7604-40A equivalent, this device serves as a high-current, low-RDS(on) discrete switch for motor, lamp, and solenoid control where thermal robustness and automotive qualification are mandatory.
Technical Context
This MOSFET employs TrenchMOS technology to achieve low conduction losses and stable threshold voltage across temperature. Its gate threshold voltage ranges from 1 V (Tj = 175 °C) to 4.4 V (Tj = −55 °C), enabling reliable turn-on with standard 10 V gate drive while maintaining safe margin against spurious activation.
The device features an integrated source-drain diode with 0.85 V forward voltage at 40 A and 96 ns reverse recovery time, supporting freewheeling in inductive loads. Its 1.6 J unclamped avalanche energy rating and 0.5 K/W junction-to-mounting-base thermal resistance support rugged operation under transient overloads and high-power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 40 V maximum - supports 12 V automotive systems with ≥3× safety margin against load dump transients. |
| ID (continuous) | 75 A at Tmb = 25 °C - limited by package thermal capability, not die rating. |
| RDS(on) | 3.9–4.5 mΩ at Tj = 25 °C; 8.5 mΩ at Tj = 175 °C - enables <1 W conduction loss at 25 A, critical for thermal management. |
| QG(tot) | 117 nC - determines gate driver strength requirement for fast switching in PWM applications. |
| EAS | 1.6 J unclamped avalanche energy - sustains single-pulse inductive energy without failure during fault conditions. |
| Rth(j-mb) | 0.5 K/W - allows 300 W total power dissipation when mounted on a properly sized heatsink. |
| VGS(th) | 2–4 V typical at 25 °C; 1 V min at 175 °C - ensures gate drive compatibility with 5 V/3.3 V logic while avoiding false turn-on at high temperature. |
Pinout & Package
Package: D2PAK (SOT404), plastic surface-mounted package with isolated mounting base connected to drain. Dimensions per IEC JEDEC outline: 15.8 × 10.3 × 4.5 mm (L × W × H), with 3 leads (lead 1 cropped).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal; requires ≤20 V gate-source voltage; 117 nC total gate charge defines driver sizing. |
| 2 (D) | Drain | Main power output; electrically tied to mounting base for direct heatsinking; handles 75 A continuous current. |
| 3 (S) | Source | Power return path; internal source inductance 7.5 nH affects switching ringing and layout sensitivity. |
| Mounting Base (mb) | Drain connection | Thermally and electrically connected to drain; must be soldered to PCB copper pour or heatsink for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive critical applications including engine control, body electronics, and ADAS power stages. |
| 175 °C junction rating | Enables operation in under-hood environments without derating in ambient temperatures up to 125 °C. |
| Low RDS(on) at high temperature | 8.5 mΩ at 175 °C ensures predictable conduction loss and thermal stability in sustained load conditions. |
| Standard-level gate drive | Turns fully on with 10 V gate-source voltage - compatible with common microcontroller GPIOs and dedicated gate drivers. |
| Integrated source-drain diode | 0.85 V VSD at 40 A and 96 ns trr supports efficient freewheeling in brushed DC motor and solenoid circuits. |
Applications
| Automotive Body Control Module (BCM) | 12 V Brushed DC Motor Driver |
|---|---|
Use Scenario: Switching headlamp, fog lamp, or HVAC blower loads in vehicle body electronics. IC Role / Device Role / Timing Role: High-side or low-side power switch controlling 12 V resistive/inductive loads. Use Value: AEC-Q101 qualification and 175 °C rating ensure reliability in sealed, high-temperature BCM enclosures. |
Use Scenario: Driving rear window defroster, seat adjuster, or power window motors. IC Role / Device Role / Timing Role: Low-side switching element with integrated freewheeling diode for PWM speed control. Use Value: 75 A current capability and 1.6 J avalanche energy withstand motor stall and inductive kickback events. |
| Engine Management Solenoid Driver | Industrial 12 V Load Switching |
Use Scenario: Controlling fuel injector, EGR valve, or turbocharger actuator solenoids. IC Role / Device Role / Timing Role: Fast-switching power stage delivering precise pulse-width modulated current pulses. Use Value: 117 nC gate charge and 151 ns turn-off delay enable accurate timing control at kHz switching frequencies. |
Use Scenario: Power sequencing and load switching in industrial control panels and test equipment. IC Role / Device Role / Timing Role: Robust discrete switch replacing mechanical relays for silent, long-life operation. Use Value: 300 W power dissipation and 0.5 K/W thermal resistance allow high-duty-cycle operation without forced cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N4F7AG | 40 V, 220 A peak, 2.2 mΩ RDS(on) @ 25 °C; DFN5x6 package; no mounting base. | Higher current density but lower thermal mass; requires advanced PCB thermal design. | Select when board space is constrained and heatsinking is via PCB copper only. |
| IRF1404ZPBF | 40 V, 195 A peak, 3.8 mΩ RDS(on) @ 25 °C; TO-220AB package; non-automotive grade. | Lacks AEC-Q101 qualification and 175 °C rating; higher RDS(on) at elevated temperature. | Select for cost-sensitive non-automotive applications where qualification is not required. |
Compared with STL220N4F7AG and IRF1404ZPBF, BUK7604-40A uniquely balances automotive qualification, D2PAK thermal performance, and 75 A continuous current in a proven industrial package-making it optimal for production-grade 12 V automotive power modules requiring field-proven reliability.
Availability
BUK7604-40A is available at Aetrix Electronics and suitable for automotive body control, brushed DC motor drives, solenoid actuation, and industrial 12 V load switching requiring stable component supply and long-term lifecycle support.
Supply support for BUK7604-40A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert specializing in high-volume, high-reliability discrete, logic, and MOSFET solutions, with leadership in automotive-qualified components.
BUK7604-40A belongs to Nexperia's TrenchMOS automotive power portfolio, engineered specifically for robust 12 V system switching where AEC-Q101 compliance, thermal resilience, and avalanche ruggedness are essential.
FAQ
Is BUK7604-40A suitable for high-side switching configurations?
Yes - its standard-level gate drive (VGS(th) ≤4 V) and 40 V VDS rating support high-side use with appropriate level-shifting gate drivers. The mounting base is internally connected to drain, so thermal interface design must accommodate high-side voltage isolation requirements.
What is the maximum recommended PCB copper area for thermal performance?
Nexperia specifies a minimum footprint for Rth(j-a) = 50 K/W; for optimal thermal performance, a ≥10 cm² 2-oz copper pour connected to the mounting base is recommended. Thermal vias (≥12× 0.3 mm diameter) beneath the base improve heat transfer to inner layers.
Does BUK7604-40A require external gate resistor for EMI suppression?
Yes - due to its 117 nC gate charge and fast switching (tf = 76 ns), a series gate resistor of 5–15 Ω is recommended to dampen ringing and reduce radiated emissions, especially in motor drive applications with long trace lengths.
Can BUK7604-40A replace older BUK7504-40A in existing designs?
Yes - BUK7604-40A is a direct replacement with identical pinout, package, and electrical specifications. It supersedes BUK7504-40A per Nexperia's revision history and maintains full functional and thermal compatibility in legacy automotive designs.
BUK7604-40A,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 40 V
- Current - Continuous Drain (Id) @ 25°C:
- 75A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 4.5mOhm @ 25A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 117 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 5730 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 300W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
BUK7604-40A,118 FAQ
1.How can I place an order for BUK7604-40A,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7604-40A,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BUK7604-40A,118 reliable?
The price and inventory of BUK7604-40A,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7604-40A,118 is usually 5 days.
3.What payment methods are accepted for BUK7604-40A,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK7604-40A,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BUK7604-40A,118?
BUK7604-40A,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7604-40A,118 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BUK7604-40A,118?
For technical support, including BUK7604-40A,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7604-40A,118 requirements.
6.How does Aetrix verify that BUK7604-40A,118 is sourced from the original manufacturer or authorized distributors?
All BUK7604-40A,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BUK7604-40A,118 meets industry standards.
7.What is the process for return or replacement of BUK7604-40A,118?
All BUK7604-40A,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7604-40A,118, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BUK7604-40A,118 part is unused and in its original packaging.
Return procedure for BUK7604-40A,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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